Technical SEO + UX
Core Web Vitals Calculator
Enter your LCP, INP, and CLS values to get a real-time Core Web Vitals assessment with prioritized fixes for each metric.
✗ Failing Core Web Vitals
0 of 3 metrics in the "Good" range. Google requires all three to pass.
LCP
Largest Contentful Paint
2.8s/ good ≤ 2.5s
- →Optimize and preload the hero image (WebP/AVIF)
- →Reduce server response time (TTFB) with caching/CDN
INP
Interaction to Next Paint
240ms/ good ≤ 200ms
- →Break up long JavaScript tasks (>50ms)
- →Defer non-critical third-party scripts
CLS
Cumulative Layout Shift
0.14/ good ≤ 0.1
- →Set explicit width/height on images and video
- →Reserve space for ads and embeds
Thresholds per Google's web.dev (2024+): INP replaced FID as a Core Web Vital in March 2024.